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Old 01-09-2013, 09:30 AM   #1
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2002 Jeep Wrangler Engine Light Not Working

My jeep recently failed it's emissions test because the check engine light does not illuminate. I doubt that it's a fuse because the rest of the lights on the instrument panel are working. Is the bulb something that is easy to replace and if so can anyone provide instructions?

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Old 01-09-2013, 10:43 AM   #2
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Have you pulled codes to see if there is a reason why it should be on? Does it illuminate/flash when you start your Jeep?

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Old 01-09-2013, 11:32 AM   #3
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2002 Jeep Wrangler Engine Light

Thanks for responding so quickly. The engine light does not go when key is in on position unlike the rest of the instrument panel. I haven't pulled codes yet and I'm wondering if previous owner (private sale) might have disabled light due to recurring codes. It seems odd to me that someone would pull the bulb out so I'm wondering if there's another possible explanation or if there's a chance that the check engine light is not supposed to illuminate, even with key in on position, unless there truly is an engine issue. I read another thread where someone said that earlier model jeep check engine lights weren't triggered by key being in on position.
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Old 01-09-2013, 11:41 AM   #4
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Pull the cluster and find out if it's as simple as a burned out bulb before worrying about more complex explanations. The link below describes how to remove it. You might as well perform the fix as described while you have it out. At the very least clean and apply fresh dielectric grease to the connectors that the gauge cluster plugs into.

TJ Jeep Problem with Instrument Guages.
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Old 01-09-2013, 05:42 PM   #5
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You would be surprised just how many "fix" the problem by removing the light especially since it is so easy to do. It should take you about 6 minutes to get the tools and pull the cluster out.
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Old 01-14-2013, 10:45 AM   #6
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I got the cluster out but I can't seem to access the bulb for the check engine light; the only bulbs that I can access are the blue bulbs that light up the dash itself. Does anyone know if there's a separate bulb for check engine light from the bulb for check guages and airbag because those light up. If one bulb controls all 3 then i have a different problem.

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